I dont think so. Its in the EU interest for them to come back in. It will show others that leaving is not a good idea. However, they wkbt want it to be easy as it might encourage others to leave. They will join in the same terms as new entrants.

They will have to join the euro and they wont get their previous favourabke rebate for agriculture.

Its still a good deal for both sides but Britain make a mistake, as most are aware.